Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 | /* * Copyright (c) 2007-2019 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* $apfw: git commit b6bf13f8321283cd7ee82b1795e86506084b1b95 $ */ /* $OpenBSD: pfvar.h,v 1.259 2007/12/02 12:08:04 pascoe Exp $ */ /* * Copyright (c) 2001 Daniel Hartmeier * NAT64 - Copyright (c) 2010 Viagenie Inc. (http://www.viagenie.ca) * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ #ifndef _NET_PFVAR_H_ #define _NET_PFVAR_H_ #ifdef PRIVATE /* * XXX * XXX Private interfaces. Do not include this file; use pfctl(8) instead. * XXX */ #if PF || !defined(KERNEL) #ifdef __cplusplus extern "C" { #endif #include <stdbool.h> #include <sys/param.h> #include <sys/types.h> #include <sys/queue.h> #include <libkern/tree.h> #include <net/radix.h> #include <netinet/in.h> #include <net/if_var.h> #ifdef KERNEL #include <kern/kern_types.h> #include <kern/zalloc.h> #include <kern/locks.h> #include <machine/endian.h> #include <sys/systm.h> #include <net/pf_pbuf.h> #if BYTE_ORDER == BIG_ENDIAN #define htobe64(x) (x) #else /* LITTLE ENDIAN */ #define htobe64(x) __DARWIN_OSSwapInt64(x) #endif /* LITTLE_ENDIAN */ #define be64toh(x) htobe64(x) extern lck_rw_t *pf_perim_lock; extern lck_mtx_t *pf_lock; struct pool { struct zone *pool_zone; /* pointer to backend zone */ const char *pool_name; /* name of pool */ unsigned int pool_count; /* # of outstanding elements */ unsigned int pool_hiwat; /* high watermark */ unsigned int pool_limit; /* hard limit */ unsigned int pool_fails; /* # of failed allocs due to limit */ }; #define PR_NOWAIT FALSE #define PR_WAITOK TRUE __private_extern__ void pool_init(struct pool *, size_t, unsigned int, unsigned int, int, const char *, void *); __private_extern__ void pool_destroy(struct pool *); __private_extern__ void pool_sethiwat(struct pool *, int); __private_extern__ void pool_sethardlimit(struct pool *, int, const char *, int); __private_extern__ void *pool_get(struct pool *, int); __private_extern__ void pool_put(struct pool *, void *); __private_extern__ u_int64_t pf_time_second(void); __private_extern__ u_int64_t pf_calendar_time_second(void); #endif /* KERNEL */ union sockaddr_union { struct sockaddr sa; struct sockaddr_in sin; struct sockaddr_in6 sin6; }; #define PF_TCPS_PROXY_SRC ((TCP_NSTATES)+0) #define PF_TCPS_PROXY_DST ((TCP_NSTATES)+1) #define PF_MD5_DIGEST_LENGTH 16 #ifdef MD5_DIGEST_LENGTH #if PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH #error #endif /* PF_MD5_DIGEST_LENGTH != MD5_DIGEST_LENGTH */ #endif /* MD5_DIGEST_LENGTH */ #ifdef KERNEL struct ip; struct ip6_hdr; struct tcphdr; struct pf_grev1_hdr; struct pf_esp_hdr; #endif /* KERNEL */ #define PF_GRE_PPTP_VARIANT 0x01 enum { PF_INOUT, PF_IN, PF_OUT }; enum { PF_PASS, PF_DROP, PF_SCRUB, PF_NOSCRUB, PF_NAT, PF_NONAT, PF_BINAT, PF_NOBINAT, PF_RDR, PF_NORDR, PF_SYNPROXY_DROP, PF_DUMMYNET, PF_NODUMMYNET, PF_NAT64, PF_NONAT64 }; enum { PF_RULESET_SCRUB, PF_RULESET_FILTER, PF_RULESET_NAT, PF_RULESET_BINAT, PF_RULESET_RDR, PF_RULESET_DUMMYNET, PF_RULESET_MAX }; enum { PF_OP_NONE, PF_OP_IRG, PF_OP_EQ, PF_OP_NE, PF_OP_LT, PF_OP_LE, PF_OP_GT, PF_OP_GE, PF_OP_XRG, PF_OP_RRG }; enum { PF_DEBUG_NONE, PF_DEBUG_URGENT, PF_DEBUG_MISC, PF_DEBUG_NOISY }; enum { PF_CHANGE_NONE, PF_CHANGE_ADD_HEAD, PF_CHANGE_ADD_TAIL, PF_CHANGE_ADD_BEFORE, PF_CHANGE_ADD_AFTER, PF_CHANGE_REMOVE, PF_CHANGE_GET_TICKET }; enum { PF_GET_NONE, PF_GET_CLR_CNTR }; /* * Note about PFTM_*: real indices into pf_rule.timeout[] come before * PFTM_MAX, special cases afterwards. See pf_state_expires(). */ enum { PFTM_TCP_FIRST_PACKET, PFTM_TCP_OPENING, PFTM_TCP_ESTABLISHED, PFTM_TCP_CLOSING, PFTM_TCP_FIN_WAIT, PFTM_TCP_CLOSED, PFTM_UDP_FIRST_PACKET, PFTM_UDP_SINGLE, PFTM_UDP_MULTIPLE, PFTM_ICMP_FIRST_PACKET, PFTM_ICMP_ERROR_REPLY, PFTM_GREv1_FIRST_PACKET, PFTM_GREv1_INITIATING, PFTM_GREv1_ESTABLISHED, PFTM_ESP_FIRST_PACKET, PFTM_ESP_INITIATING, PFTM_ESP_ESTABLISHED, PFTM_OTHER_FIRST_PACKET, PFTM_OTHER_SINGLE, PFTM_OTHER_MULTIPLE, PFTM_FRAG, PFTM_INTERVAL, PFTM_ADAPTIVE_START, PFTM_ADAPTIVE_END, PFTM_SRC_NODE, PFTM_TS_DIFF, PFTM_MAX, PFTM_PURGE, PFTM_UNLINKED }; /* PFTM default values */ #define PFTM_TCP_FIRST_PACKET_VAL 120 /* First TCP packet */ #define PFTM_TCP_OPENING_VAL 30 /* No response yet */ #define PFTM_TCP_ESTABLISHED_VAL (24 * 60 * 60) /* Established */ #define PFTM_TCP_CLOSING_VAL (15 * 60) /* Half closed */ #define PFTM_TCP_FIN_WAIT_VAL 45 /* Got both FINs */ #define PFTM_TCP_CLOSED_VAL 90 /* Got a RST */ #define PFTM_UDP_FIRST_PACKET_VAL 60 /* First UDP packet */ #define PFTM_UDP_SINGLE_VAL 30 /* Unidirectional */ #define PFTM_UDP_MULTIPLE_VAL 60 /* Bidirectional */ #define PFTM_ICMP_FIRST_PACKET_VAL 20 /* First ICMP packet */ #define PFTM_ICMP_ERROR_REPLY_VAL 10 /* Got error response */ #define PFTM_GREv1_FIRST_PACKET_VAL 120 #define PFTM_GREv1_INITIATING_VAL 30 #define PFTM_GREv1_ESTABLISHED_VAL 1800 #define PFTM_ESP_FIRST_PACKET_VAL 120 #define PFTM_ESP_INITIATING_VAL 30 #define PFTM_ESP_ESTABLISHED_VAL 900 #define PFTM_OTHER_FIRST_PACKET_VAL 60 /* First packet */ #define PFTM_OTHER_SINGLE_VAL 30 /* Unidirectional */ #define PFTM_OTHER_MULTIPLE_VAL 60 /* Bidirectional */ #define PFTM_FRAG_VAL 30 /* Fragment expire */ #define PFTM_INTERVAL_VAL 10 /* Expire interval */ #define PFTM_SRC_NODE_VAL 0 /* Source tracking */ #define PFTM_TS_DIFF_VAL 30 /* Allowed TS diff */ enum { PF_NOPFROUTE, PF_FASTROUTE, PF_ROUTETO, PF_DUPTO, PF_REPLYTO }; enum { PF_LIMIT_STATES, PF_LIMIT_APP_STATES, PF_LIMIT_SRC_NODES, PF_LIMIT_FRAGS, PF_LIMIT_TABLES, PF_LIMIT_TABLE_ENTRIES, PF_LIMIT_MAX }; #define PF_POOL_IDMASK 0x0f enum { PF_POOL_NONE, PF_POOL_BITMASK, PF_POOL_RANDOM, PF_POOL_SRCHASH, PF_POOL_ROUNDROBIN }; enum { PF_ADDR_ADDRMASK, PF_ADDR_NOROUTE, PF_ADDR_DYNIFTL, PF_ADDR_TABLE, PF_ADDR_RTLABEL, PF_ADDR_URPFFAILED, PF_ADDR_RANGE }; #define PF_POOL_TYPEMASK 0x0f #define PF_POOL_STICKYADDR 0x20 #define PF_WSCALE_FLAG 0x80 #define PF_WSCALE_MASK 0x0f #define PF_LOG 0x01 #define PF_LOG_ALL 0x02 #define PF_LOG_SOCKET_LOOKUP 0x04 struct pf_addr { union { struct in_addr _v4addr; struct in6_addr _v6addr; u_int8_t _addr8[16]; u_int16_t _addr16[8]; u_int32_t _addr32[4]; } pfa; /* 128-bit address */ #define v4addr pfa._v4addr #define v6addr pfa._v6addr #define addr8 pfa._addr8 #define addr16 pfa._addr16 #define addr32 pfa._addr32 }; #define PF_TABLE_NAME_SIZE 32 #define PFI_AFLAG_NETWORK 0x01 #define PFI_AFLAG_BROADCAST 0x02 #define PFI_AFLAG_PEER 0x04 #define PFI_AFLAG_MODEMASK 0x07 #define PFI_AFLAG_NOALIAS 0x08 #ifndef RTLABEL_LEN #define RTLABEL_LEN 32 #endif struct pf_addr_wrap { union { struct { struct pf_addr addr; struct pf_addr mask; } a; char ifname[IFNAMSIZ]; char tblname[PF_TABLE_NAME_SIZE]; char rtlabelname[RTLABEL_LEN]; u_int32_t rtlabel; } v; union { #ifdef KERNEL struct pfi_dynaddr *dyn __attribute__((aligned(8))); struct pfr_ktable *tbl __attribute__((aligned(8))); #else /* !KERNEL */ void *dyn __attribute__((aligned(8))); void *tbl __attribute__((aligned(8))); #endif /* !KERNEL */ int dyncnt __attribute__((aligned(8))); int tblcnt __attribute__((aligned(8))); } p __attribute__((aligned(8))); u_int8_t type; /* PF_ADDR_* */ u_int8_t iflags; /* PFI_AFLAG_* */ }; struct pf_port_range { u_int16_t port[2]; u_int8_t op; }; union pf_rule_xport { struct pf_port_range range; u_int16_t call_id; u_int32_t spi; }; #ifdef KERNEL struct pfi_dynaddr { TAILQ_ENTRY(pfi_dynaddr) entry; struct pf_addr pfid_addr4; struct pf_addr pfid_mask4; struct pf_addr pfid_addr6; struct pf_addr pfid_mask6; struct pfr_ktable *pfid_kt; struct pfi_kif *pfid_kif; void *pfid_hook_cookie; int pfid_net; /* mask or 128 */ int pfid_acnt4; /* address count IPv4 */ int pfid_acnt6; /* address count IPv6 */ sa_family_t pfid_af; /* rule af */ u_int8_t pfid_iflags; /* PFI_AFLAG_* */ }; /* * Address manipulation macros */ #if INET #if !INET6 #define PF_INET_ONLY #endif /* ! INET6 */ #endif /* INET */ #if INET6 #if !INET #define PF_INET6_ONLY #endif /* ! INET */ #endif /* INET6 */ #if INET #if INET6 #define PF_INET_INET6 #endif /* INET6 */ #endif /* INET */ #else /* !KERNEL */ #define PF_INET_INET6 #endif /* !KERNEL */ /* Both IPv4 and IPv6 */ #ifdef PF_INET_INET6 #define PF_AEQ(a, b, c) \ ((c == AF_INET && (a)->addr32[0] == (b)->addr32[0]) || \ ((a)->addr32[3] == (b)->addr32[3] && \ (a)->addr32[2] == (b)->addr32[2] && \ (a)->addr32[1] == (b)->addr32[1] && \ (a)->addr32[0] == (b)->addr32[0])) \ #define PF_ANEQ(a, b, c) \ ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ ((a)->addr32[3] != (b)->addr32[3] || \ (a)->addr32[2] != (b)->addr32[2] || \ (a)->addr32[1] != (b)->addr32[1] || \ (a)->addr32[0] != (b)->addr32[0])) \ #define PF_ALEQ(a, b, c) \ ((c == AF_INET && (a)->addr32[0] <= (b)->addr32[0]) || \ ((a)->addr32[3] <= (b)->addr32[3] && \ (a)->addr32[2] <= (b)->addr32[2] && \ (a)->addr32[1] <= (b)->addr32[1] && \ (a)->addr32[0] <= (b)->addr32[0])) \ #define PF_AZERO(a, c) \ ((c == AF_INET && !(a)->addr32[0]) || \ (!(a)->addr32[0] && !(a)->addr32[1] && \ !(a)->addr32[2] && !(a)->addr32[3])) \ #define PF_MATCHA(n, a, m, b, f) \ pf_match_addr(n, a, m, b, f) #define PF_ACPY(a, b, f) \ pf_addrcpy(a, b, f) #define PF_AINC(a, f) \ pf_addr_inc(a, f) #define PF_POOLMASK(a, b, c, d, f) \ pf_poolmask(a, b, c, d, f) #else /* Just IPv6 */ #ifdef PF_INET6_ONLY #define PF_AEQ(a, b, c) \ ((a)->addr32[3] == (b)->addr32[3] && \ (a)->addr32[2] == (b)->addr32[2] && \ (a)->addr32[1] == (b)->addr32[1] && \ (a)->addr32[0] == (b)->addr32[0]) \ #define PF_ANEQ(a, b, c) \ ((a)->addr32[3] != (b)->addr32[3] || \ (a)->addr32[2] != (b)->addr32[2] || \ (a)->addr32[1] != (b)->addr32[1] || \ (a)->addr32[0] != (b)->addr32[0]) \ #define PF_ALEQ(a, b, c) \ ((a)->addr32[3] <= (b)->addr32[3] && \ (a)->addr32[2] <= (b)->addr32[2] && \ (a)->addr32[1] <= (b)->addr32[1] && \ (a)->addr32[0] <= (b)->addr32[0]) \ #define PF_AZERO(a, c) \ (!(a)->addr32[0] && \ !(a)->addr32[1] && \ !(a)->addr32[2] && \ !(a)->addr32[3]) \ #define PF_MATCHA(n, a, m, b, f) \ pf_match_addr(n, a, m, b, f) #define PF_ACPY(a, b, f) \ pf_addrcpy(a, b, f) #define PF_AINC(a, f) \ pf_addr_inc(a, f) #define PF_POOLMASK(a, b, c, d, f) \ pf_poolmask(a, b, c, d, f) #else /* Just IPv4 */ #ifdef PF_INET_ONLY #define PF_AEQ(a, b, c) \ ((a)->addr32[0] == (b)->addr32[0]) #define PF_ANEQ(a, b, c) \ ((a)->addr32[0] != (b)->addr32[0]) #define PF_ALEQ(a, b, c) \ ((a)->addr32[0] <= (b)->addr32[0]) #define PF_AZERO(a, c) \ (!(a)->addr32[0]) #define PF_MATCHA(n, a, m, b, f) \ pf_match_addr(n, a, m, b, f) #define PF_ACPY(a, b, f) \ (a)->v4.s_addr = (b)->v4.s_addr #define PF_AINC(a, f) \ do { \ (a)->addr32[0] = htonl(ntohl((a)->addr32[0]) + 1); \ } while (0) #define PF_POOLMASK(a, b, c, d, f) \ do { \ (a)->addr32[0] = ((b)->addr32[0] & (c)->addr32[0]) | \ (((c)->addr32[0] ^ 0xffffffff) & (d)->addr32[0]); \ } while (0) #endif /* PF_INET_ONLY */ #endif /* PF_INET6_ONLY */ #endif /* PF_INET_INET6 */ #ifdef KERNEL #define PF_MISMATCHAW(aw, x, af, neg, ifp) \ ( \ (((aw)->type == PF_ADDR_NOROUTE && \ pf_routable((x), (af), NULL)) || \ (((aw)->type == PF_ADDR_URPFFAILED && (ifp) != NULL && \ pf_routable((x), (af), (ifp))) || \ ((aw)->type == PF_ADDR_RTLABEL && \ !pf_rtlabel_match((x), (af), (aw))) || \ ((aw)->type == PF_ADDR_TABLE && \ !pfr_match_addr((aw)->p.tbl, (x), (af))) || \ ((aw)->type == PF_ADDR_DYNIFTL && \ !pfi_match_addr((aw)->p.dyn, (x), (af))) || \ ((aw)->type == PF_ADDR_RANGE && \ !pf_match_addr_range(&(aw)->v.a.addr, \ &(aw)->v.a.mask, (x), (af))) || \ ((aw)->type == PF_ADDR_ADDRMASK && \ !PF_AZERO(&(aw)->v.a.mask, (af)) && \ !PF_MATCHA(0, &(aw)->v.a.addr, \ &(aw)->v.a.mask, (x), (af))))) != \ (neg) \ ) #endif /* KERNEL */ struct pf_rule_uid { uid_t uid[2]; u_int8_t op; u_int8_t _pad[3]; }; struct pf_rule_gid { uid_t gid[2]; u_int8_t op; u_int8_t _pad[3]; }; struct pf_rule_addr { struct pf_addr_wrap addr; union pf_rule_xport xport; u_int8_t neg; }; struct pf_pooladdr { struct pf_addr_wrap addr; TAILQ_ENTRY(pf_pooladdr) entries; #if !defined(__LP64__) u_int32_t _pad[2]; #endif /* !__LP64__ */ char ifname[IFNAMSIZ]; #ifdef KERNEL struct pfi_kif *kif __attribute__((aligned(8))); #else /* !KERNEL */ void *kif __attribute__((aligned(8))); #endif /* !KERNEL */ }; TAILQ_HEAD(pf_palist, pf_pooladdr); struct pf_poolhashkey { union { u_int8_t key8[16]; u_int16_t key16[8]; u_int32_t key32[4]; } pfk; /* 128-bit hash key */ #define key8 pfk.key8 #define key16 pfk.key16 #define key32 pfk.key32 }; struct pf_pool { struct pf_palist list; #if !defined(__LP64__) u_int32_t _pad[2]; #endif /* !__LP64__ */ #ifdef KERNEL struct pf_pooladdr *cur __attribute__((aligned(8))); #else /* !KERNEL */ void *cur __attribute__((aligned(8))); #endif /* !KERNEL */ struct pf_poolhashkey key __attribute__((aligned(8))); struct pf_addr counter; int tblidx; u_int16_t proxy_port[2]; u_int8_t port_op; u_int8_t opts; sa_family_t af; }; /* A packed Operating System description for fingerprinting */ typedef u_int32_t pf_osfp_t; #define PF_OSFP_ANY ((pf_osfp_t)0) #define PF_OSFP_UNKNOWN ((pf_osfp_t)-1) #define PF_OSFP_NOMATCH ((pf_osfp_t)-2) struct pf_osfp_entry { SLIST_ENTRY(pf_osfp_entry) fp_entry; #if !defined(__LP64__) u_int32_t _pad; #endif /* !__LP64__ */ pf_osfp_t fp_os; int fp_enflags; #define PF_OSFP_EXPANDED 0x001 /* expanded entry */ #define PF_OSFP_GENERIC 0x002 /* generic signature */ #define PF_OSFP_NODETAIL 0x004 /* no p0f details */ #define PF_OSFP_LEN 32 char fp_class_nm[PF_OSFP_LEN]; char fp_version_nm[PF_OSFP_LEN]; char fp_subtype_nm[PF_OSFP_LEN]; }; #define PF_OSFP_ENTRY_EQ(a, b) \ ((a)->fp_os == (b)->fp_os && \ memcmp((a)->fp_class_nm, (b)->fp_class_nm, PF_OSFP_LEN) == 0 && \ memcmp((a)->fp_version_nm, (b)->fp_version_nm, PF_OSFP_LEN) == 0 && \ memcmp((a)->fp_subtype_nm, (b)->fp_subtype_nm, PF_OSFP_LEN) == 0) /* handle pf_osfp_t packing */ #define _FP_RESERVED_BIT 1 /* For the special negative #defines */ #define _FP_UNUSED_BITS 1 #define _FP_CLASS_BITS 10 /* OS Class (Windows, Linux) */ #define _FP_VERSION_BITS 10 /* OS version (95, 98, NT, 2.4.54, 3.2) */ #define _FP_SUBTYPE_BITS 10 /* patch level (NT SP4, SP3, ECN patch) */ #define PF_OSFP_UNPACK(osfp, class, version, subtype) do { \ (class) = ((osfp) >> (_FP_VERSION_BITS+_FP_SUBTYPE_BITS)) & \ ((1 << _FP_CLASS_BITS) - 1); \ (version) = ((osfp) >> _FP_SUBTYPE_BITS) & \ ((1 << _FP_VERSION_BITS) - 1);\ (subtype) = (osfp) & ((1 << _FP_SUBTYPE_BITS) - 1); \ } while (0) #define PF_OSFP_PACK(osfp, class, version, subtype) do { \ (osfp) = ((class) & ((1 << _FP_CLASS_BITS) - 1)) << (_FP_VERSION_BITS \ + _FP_SUBTYPE_BITS); \ (osfp) |= ((version) & ((1 << _FP_VERSION_BITS) - 1)) << \ _FP_SUBTYPE_BITS; \ (osfp) |= (subtype) & ((1 << _FP_SUBTYPE_BITS) - 1); \ } while (0) /* the fingerprint of an OSes TCP SYN packet */ typedef u_int64_t pf_tcpopts_t; struct pf_os_fingerprint { SLIST_HEAD(pf_osfp_enlist, pf_osfp_entry) fp_oses; /* list of matches */ pf_tcpopts_t fp_tcpopts; /* packed TCP options */ u_int16_t fp_wsize; /* TCP window size */ u_int16_t fp_psize; /* ip->ip_len */ u_int16_t fp_mss; /* TCP MSS */ u_int16_t fp_flags; #define PF_OSFP_WSIZE_MOD 0x0001 /* Window modulus */ #define PF_OSFP_WSIZE_DC 0x0002 /* Window don't care */ #define PF_OSFP_WSIZE_MSS 0x0004 /* Window multiple of MSS */ #define PF_OSFP_WSIZE_MTU 0x0008 /* Window multiple of MTU */ #define PF_OSFP_PSIZE_MOD 0x0010 /* packet size modulus */ #define PF_OSFP_PSIZE_DC 0x0020 /* packet size don't care */ #define PF_OSFP_WSCALE 0x0040 /* TCP window scaling */ #define PF_OSFP_WSCALE_MOD 0x0080 /* TCP window scale modulus */ #define PF_OSFP_WSCALE_DC 0x0100 /* TCP window scale dont-care */ #define PF_OSFP_MSS 0x0200 /* TCP MSS */ #define PF_OSFP_MSS_MOD 0x0400 /* TCP MSS modulus */ #define PF_OSFP_MSS_DC 0x0800 /* TCP MSS dont-care */ #define PF_OSFP_DF 0x1000 /* IPv4 don't fragment bit */ #define PF_OSFP_TS0 0x2000 /* Zero timestamp */ #define PF_OSFP_INET6 0x4000 /* IPv6 */ u_int8_t fp_optcnt; /* TCP option count */ u_int8_t fp_wscale; /* TCP window scaling */ u_int8_t fp_ttl; /* IPv4 TTL */ #define PF_OSFP_MAXTTL_OFFSET 40 /* TCP options packing */ #define PF_OSFP_TCPOPT_NOP 0x0 /* TCP NOP option */ #define PF_OSFP_TCPOPT_WSCALE 0x1 /* TCP window scaling option */ #define PF_OSFP_TCPOPT_MSS 0x2 /* TCP max segment size opt */ #define PF_OSFP_TCPOPT_SACK 0x3 /* TCP SACK OK option */ #define PF_OSFP_TCPOPT_TS 0x4 /* TCP timestamp option */ #define PF_OSFP_TCPOPT_BITS 3 /* bits used by each option */ #define PF_OSFP_MAX_OPTS \ ((sizeof(pf_tcpopts_t) * 8) \ / PF_OSFP_TCPOPT_BITS) SLIST_ENTRY(pf_os_fingerprint) fp_next; }; struct pf_osfp_ioctl { struct pf_osfp_entry fp_os; pf_tcpopts_t fp_tcpopts; /* packed TCP options */ u_int16_t fp_wsize; /* TCP window size */ u_int16_t fp_psize; /* ip->ip_len */ u_int16_t fp_mss; /* TCP MSS */ u_int16_t fp_flags; u_int8_t fp_optcnt; /* TCP option count */ u_int8_t fp_wscale; /* TCP window scaling */ u_int8_t fp_ttl; /* IPv4 TTL */ int fp_getnum; /* DIOCOSFPGET number */ }; union pf_rule_ptr { struct pf_rule *ptr __attribute__((aligned(8))); u_int32_t nr __attribute__((aligned(8))); } __attribute__((aligned(8))); #define PF_ANCHOR_NAME_SIZE 64 struct pf_rule { struct pf_rule_addr src; struct pf_rule_addr dst; #define PF_SKIP_IFP 0 #define PF_SKIP_DIR 1 #define PF_SKIP_AF 2 #define PF_SKIP_PROTO 3 #define PF_SKIP_SRC_ADDR 4 #define PF_SKIP_SRC_PORT 5 #define PF_SKIP_DST_ADDR 6 #define PF_SKIP_DST_PORT 7 #define PF_SKIP_COUNT 8 union pf_rule_ptr skip[PF_SKIP_COUNT]; #define PF_RULE_LABEL_SIZE 64 char label[PF_RULE_LABEL_SIZE]; #define PF_QNAME_SIZE 64 char ifname[IFNAMSIZ]; char qname[PF_QNAME_SIZE]; char pqname[PF_QNAME_SIZE]; #define PF_TAG_NAME_SIZE 64 char tagname[PF_TAG_NAME_SIZE]; char match_tagname[PF_TAG_NAME_SIZE]; char overload_tblname[PF_TABLE_NAME_SIZE]; TAILQ_ENTRY(pf_rule) entries; #if !defined(__LP64__) u_int32_t _pad[2]; #endif /* !__LP64__ */ struct pf_pool rpool; u_int64_t evaluations; u_int64_t packets[2]; u_int64_t bytes[2]; u_int64_t ticket; #define PF_OWNER_NAME_SIZE 64 char owner[PF_OWNER_NAME_SIZE]; u_int32_t priority; #ifdef KERNEL struct pfi_kif *kif __attribute__((aligned(8))); #else /* !KERNEL */ void *kif __attribute__((aligned(8))); #endif /* !KERNEL */ struct pf_anchor *anchor __attribute__((aligned(8))); #ifdef KERNEL struct pfr_ktable *overload_tbl __attribute__((aligned(8))); #else /* !KERNEL */ void *overload_tbl __attribute__((aligned(8))); #endif /* !KERNEL */ pf_osfp_t os_fingerprint __attribute__((aligned(8))); unsigned int rtableid; u_int32_t timeout[PFTM_MAX]; u_int32_t states; u_int32_t max_states; u_int32_t src_nodes; u_int32_t max_src_nodes; u_int32_t max_src_states; u_int32_t max_src_conn; struct { u_int32_t limit; u_int32_t seconds; } max_src_conn_rate; u_int32_t qid; u_int32_t pqid; u_int32_t rt_listid; u_int32_t nr; u_int32_t prob; uid_t cuid; pid_t cpid; u_int16_t return_icmp; u_int16_t return_icmp6; u_int16_t max_mss; u_int16_t tag; u_int16_t match_tag; struct pf_rule_uid uid; struct pf_rule_gid gid; u_int32_t rule_flag; u_int8_t action; u_int8_t direction; u_int8_t log; u_int8_t logif; u_int8_t quick; u_int8_t ifnot; u_int8_t match_tag_not; u_int8_t natpass; #define PF_STATE_NORMAL 0x1 #define PF_STATE_MODULATE 0x2 #define PF_STATE_SYNPROXY 0x3 u_int8_t keep_state; sa_family_t af; u_int8_t proto; u_int8_t type; u_int8_t code; u_int8_t flags; u_int8_t flagset; u_int8_t min_ttl; u_int8_t allow_opts; u_int8_t rt; u_int8_t return_ttl; /* service class categories */ #define SCIDX_MASK 0x0f #define SC_BE 0x10 #define SC_BK_SYS 0x11 #define SC_BK 0x12 #define SC_RD 0x13 #define SC_OAM 0x14 #define SC_AV 0x15 #define SC_RV 0x16 #define SC_VI 0x17 #define SC_SIG 0x17 #define SC_VO 0x18 #define SC_CTL 0x19 /* diffserve code points */ #define DSCP_MASK 0xfc #define DSCP_CUMASK 0x03 #define DSCP_EF 0xb8 #define DSCP_AF11 0x28 #define DSCP_AF12 0x30 #define DSCP_AF13 0x38 #define DSCP_AF21 0x48 #define DSCP_AF22 0x50 #define DSCP_AF23 0x58 #define DSCP_AF31 0x68 #define DSCP_AF32 0x70 #define DSCP_AF33 0x78 #define DSCP_AF41 0x88 #define DSCP_AF42 0x90 #define DSCP_AF43 0x98 #define AF_CLASSMASK 0xe0 #define AF_DROPPRECMASK 0x18 u_int8_t tos; u_int8_t anchor_relative; u_int8_t anchor_wildcard; #define PF_FLUSH 0x01 #define PF_FLUSH_GLOBAL 0x02 u_int8_t flush; u_int8_t proto_variant; u_int8_t extfilter; /* Filter mode [PF_EXTFILTER_xxx] */ u_int8_t extmap; /* Mapping mode [PF_EXTMAP_xxx] */ u_int32_t dnpipe; u_int32_t dntype; }; /* pf device identifiers */ #define PFDEV_PF 0 #define PFDEV_PFM 1 #define PFDEV_MAX 2 /* rule flags */ #define PFRULE_DROP 0x0000 #define PFRULE_RETURNRST 0x0001 #define PFRULE_FRAGMENT 0x0002 #define PFRULE_RETURNICMP 0x0004 #define PFRULE_RETURN 0x0008 #define PFRULE_NOSYNC 0x0010 #define PFRULE_SRCTRACK 0x0020 /* track source states */ #define PFRULE_RULESRCTRACK 0x0040 /* per rule */ /* scrub flags */ #define PFRULE_NODF 0x0100 #define PFRULE_FRAGCROP 0x0200 /* non-buffering frag cache */ #define PFRULE_FRAGDROP 0x0400 /* drop funny fragments */ #define PFRULE_RANDOMID 0x0800 #define PFRULE_REASSEMBLE_TCP 0x1000 /* rule flags for TOS/DSCP/service class differentiation */ #define PFRULE_TOS 0x2000 #define PFRULE_DSCP 0x4000 #define PFRULE_SC 0x8000 /* rule flags again */ #define PFRULE_IFBOUND 0x00010000 /* if-bound */ #define PFRULE_PFM 0x00020000 /* created by pfm device */ #define PFSTATE_HIWAT 10000 /* default state table size */ #define PFSTATE_ADAPT_START 6000 /* default adaptive timeout start */ #define PFSTATE_ADAPT_END 12000 /* default adaptive timeout end */ #define PFAPPSTATE_HIWAT 10000 /* default same as state table */ enum pf_extmap { PF_EXTMAP_APD = 1, /* Address-port-dependent mapping */ PF_EXTMAP_AD, /* Address-dependent mapping */ PF_EXTMAP_EI /* Endpoint-independent mapping */ }; enum pf_extfilter { PF_EXTFILTER_APD = 1, /* Address-port-dependent filtering */ PF_EXTFILTER_AD, /* Address-dependent filtering */ PF_EXTFILTER_EI /* Endpoint-independent filtering */ }; struct pf_threshold { u_int32_t limit; #define PF_THRESHOLD_MULT 1000 #define PF_THRESHOLD_MAX 0xffffffff / PF_THRESHOLD_MULT u_int32_t seconds; u_int32_t count; u_int32_t last; }; struct pf_src_node { RB_ENTRY(pf_src_node) entry; struct pf_addr addr; struct pf_addr raddr; union pf_rule_ptr rule; #ifdef KERNEL struct pfi_kif *kif; #else /* !KERNEL */ void *kif; #endif /* !KERNEL */ u_int64_t bytes[2]; u_int64_t packets[2]; u_int32_t states; u_int32_t conn; struct pf_threshold conn_rate; u_int64_t creation; u_int64_t expire; sa_family_t af; u_int8_t ruletype; }; #define PFSNODE_HIWAT 10000 /* default source node table size */ #ifdef KERNEL struct pf_state_scrub { struct timeval pfss_last; /* time received last packet */ u_int32_t pfss_tsecr; /* last echoed timestamp */ u_int32_t pfss_tsval; /* largest timestamp */ u_int32_t pfss_tsval0; /* original timestamp */ u_int16_t pfss_flags; #define PFSS_TIMESTAMP 0x0001 /* modulate timestamp */ #define PFSS_PAWS 0x0010 /* stricter PAWS checks */ #define PFSS_PAWS_IDLED 0x0020 /* was idle too long. no PAWS */ #define PFSS_DATA_TS 0x0040 /* timestamp on data packets */ #define PFSS_DATA_NOTS 0x0080 /* no timestamp on data packets */ u_int8_t pfss_ttl; /* stashed TTL */ u_int8_t pad; u_int32_t pfss_ts_mod; /* timestamp modulation */ }; #endif /* KERNEL */ union pf_state_xport { u_int16_t port; u_int16_t call_id; u_int32_t spi; }; struct pf_state_host { struct pf_addr addr; union pf_state_xport xport; }; #ifdef KERNEL struct pf_state_peer { u_int32_t seqlo; /* Max sequence number sent */ u_int32_t seqhi; /* Max the other end ACKd + win */ u_int32_t seqdiff; /* Sequence number modulator */ u_int16_t max_win; /* largest window (pre scaling) */ u_int8_t state; /* active state level */ u_int8_t wscale; /* window scaling factor */ u_int16_t mss; /* Maximum segment size option */ u_int8_t tcp_est; /* Did we reach TCPS_ESTABLISHED */ struct pf_state_scrub *scrub; /* state is scrubbed */ u_int8_t pad[3]; }; TAILQ_HEAD(pf_state_queue, pf_state); struct pf_state; struct pf_pdesc; struct pf_app_state; typedef void (*pf_app_handler)(struct pf_state *, int, int, struct pf_pdesc *, struct pfi_kif *); typedef int (*pf_app_compare)(struct pf_app_state *, struct pf_app_state *); struct pf_pptp_state { struct pf_state *grev1_state; }; struct pf_grev1_state { struct pf_state *pptp_state; }; struct pf_ike_state { u_int64_t cookie; }; struct pf_app_state { pf_app_handler handler; pf_app_compare compare_lan_ext; pf_app_compare compare_ext_gwy; union { struct pf_pptp_state pptp; struct pf_grev1_state grev1; struct pf_ike_state ike; } u; }; /* keep synced with struct pf_state, used in RB_FIND */ struct pf_state_key_cmp { struct pf_state_host lan; struct pf_state_host gwy; struct pf_state_host ext_lan; struct pf_state_host ext_gwy; sa_family_t af_lan; sa_family_t af_gwy; u_int8_t proto; u_int8_t direction; u_int8_t proto_variant; struct pf_app_state *app_state; }; TAILQ_HEAD(pf_statelist, pf_state); struct pf_state_key { struct pf_state_host lan; struct pf_state_host gwy; struct pf_state_host ext_lan; struct pf_state_host ext_gwy; sa_family_t af_lan; sa_family_t af_gwy; u_int8_t proto; u_int8_t direction; u_int8_t proto_variant; struct pf_app_state *app_state; u_int32_t flowsrc; u_int32_t flowhash; RB_ENTRY(pf_state_key) entry_lan_ext; RB_ENTRY(pf_state_key) entry_ext_gwy; struct pf_statelist states; u_int32_t refcnt; }; /* keep synced with struct pf_state, used in RB_FIND */ struct pf_state_cmp { u_int64_t id; u_int32_t creatorid; u_int32_t pad; }; /* flowhash key (12-bytes multiple for performance) */ struct pf_flowhash_key { struct pf_state_host ap1; /* address+port blob 1 */ struct pf_state_host ap2; /* address+port blob 2 */ u_int32_t af; u_int32_t proto; }; #endif /* KERNEL */ struct hook_desc; TAILQ_HEAD(hook_desc_head, hook_desc); #ifdef KERNEL struct pf_state { u_int64_t id; u_int32_t creatorid; u_int32_t pad; TAILQ_ENTRY(pf_state) entry_list; TAILQ_ENTRY(pf_state) next; RB_ENTRY(pf_state) entry_id; struct pf_state_peer src; struct pf_state_peer dst; union pf_rule_ptr rule; union pf_rule_ptr anchor; union pf_rule_ptr nat_rule; struct pf_addr rt_addr; struct hook_desc_head unlink_hooks; struct pf_state_key *state_key; struct pfi_kif *kif; struct pfi_kif *rt_kif; struct pf_src_node *src_node; struct pf_src_node *nat_src_node; u_int64_t packets[2]; u_int64_t bytes[2]; u_int64_t creation; u_int64_t expire; u_int64_t pfsync_time; u_int16_t tag; u_int8_t log; u_int8_t allow_opts; u_int8_t timeout; u_int8_t sync_flags; }; #endif /* KERNEL */ #define PFSTATE_NOSYNC 0x01 #define PFSTATE_FROMSYNC 0x02 #define PFSTATE_STALE 0x04 #define __packed __attribute__((__packed__)) /* * Unified state structures for pulling states out of the kernel * used by pfsync(4) and the pf(4) ioctl. */ struct pfsync_state_scrub { u_int16_t pfss_flags; u_int8_t pfss_ttl; /* stashed TTL */ #define PFSYNC_SCRUB_FLAG_VALID 0x01 u_int8_t scrub_flag; u_int32_t pfss_ts_mod; /* timestamp modulation */ } __packed; struct pfsync_state_host { struct pf_addr addr; union pf_state_xport xport; u_int16_t pad[2]; } __packed; struct pfsync_state_peer { struct pfsync_state_scrub scrub; /* state is scrubbed */ u_int32_t seqlo; /* Max sequence number sent */ u_int32_t seqhi; /* Max the other end ACKd + win */ u_int32_t seqdiff; /* Sequence number modulator */ u_int16_t max_win; /* largest window (pre scaling) */ u_int16_t mss; /* Maximum segment size option */ u_int8_t state; /* active state level */ u_int8_t wscale; /* window scaling factor */ u_int8_t pad[6]; } __packed; struct pfsync_state { u_int32_t id[2]; char ifname[IFNAMSIZ]; struct pfsync_state_host lan; struct pfsync_state_host gwy; struct pfsync_state_host ext_lan; struct pfsync_state_host ext_gwy; struct pfsync_state_peer src; struct pfsync_state_peer dst; struct pf_addr rt_addr; struct hook_desc_head unlink_hooks; #if !defined(__LP64__) u_int32_t _pad[2]; #endif /* !__LP64__ */ u_int32_t rule; u_int32_t anchor; u_int32_t nat_rule; u_int64_t creation; u_int64_t expire; u_int32_t packets[2][2]; u_int32_t bytes[2][2]; u_int32_t creatorid; u_int16_t tag; sa_family_t af_lan; sa_family_t af_gwy; u_int8_t proto; u_int8_t direction; u_int8_t log; u_int8_t allow_opts; u_int8_t timeout; u_int8_t sync_flags; u_int8_t updates; u_int8_t proto_variant; u_int8_t __pad; u_int32_t flowhash; } __packed; #define PFSYNC_FLAG_COMPRESS 0x01 #define PFSYNC_FLAG_STALE 0x02 #define PFSYNC_FLAG_SRCNODE 0x04 #define PFSYNC_FLAG_NATSRCNODE 0x08 #ifdef KERNEL /* for copies to/from userland via pf_ioctl() */ #define pf_state_peer_to_pfsync(s, d) do { \ (d)->seqlo = (s)->seqlo; \ (d)->seqhi = (s)->seqhi; \ (d)->seqdiff = (s)->seqdiff; \ (d)->max_win = (s)->max_win; \ (d)->mss = (s)->mss; \ (d)->state = (s)->state; \ (d)->wscale = (s)->wscale; \ if ((s)->scrub) { \ (d)->scrub.pfss_flags = \ (s)->scrub->pfss_flags & PFSS_TIMESTAMP; \ (d)->scrub.pfss_ttl = (s)->scrub->pfss_ttl; \ (d)->scrub.pfss_ts_mod = (s)->scrub->pfss_ts_mod; \ (d)->scrub.scrub_flag = PFSYNC_SCRUB_FLAG_VALID; \ } \ } while (0) #define pf_state_peer_from_pfsync(s, d) do { \ (d)->seqlo = (s)->seqlo; \ (d)->seqhi = (s)->seqhi; \ (d)->seqdiff = (s)->seqdiff; \ (d)->max_win = (s)->max_win; \ (d)->mss = ntohs((s)->mss); \ (d)->state = (s)->state; \ (d)->wscale = (s)->wscale; \ if ((s)->scrub.scrub_flag == PFSYNC_SCRUB_FLAG_VALID && \ (d)->scrub != NULL) { \ (d)->scrub->pfss_flags = \ ntohs((s)->scrub.pfss_flags) & PFSS_TIMESTAMP; \ (d)->scrub->pfss_ttl = (s)->scrub.pfss_ttl; \ (d)->scrub->pfss_ts_mod = (s)->scrub.pfss_ts_mod; \ } \ } while (0) #endif /* KERNEL */ #define pf_state_counter_to_pfsync(s, d) do { \ d[0] = (s>>32)&0xffffffff; \ d[1] = s&0xffffffff; \ } while (0) #define pf_state_counter_from_pfsync(s) \ (((u_int64_t)(s[0])<<32) | (u_int64_t)(s[1])) TAILQ_HEAD(pf_rulequeue, pf_rule); struct pf_anchor; struct pf_ruleset { struct { struct pf_rulequeue queues[2]; struct { struct pf_rulequeue *ptr; struct pf_rule **ptr_array; u_int32_t rcount; u_int32_t ticket; int open; } active, inactive; } rules[PF_RULESET_MAX]; struct pf_anchor *anchor; u_int32_t tticket; int tables; int topen; }; RB_HEAD(pf_anchor_global, pf_anchor); RB_HEAD(pf_anchor_node, pf_anchor); struct pf_anchor { RB_ENTRY(pf_anchor) entry_global; RB_ENTRY(pf_anchor) entry_node; struct pf_anchor *parent; struct pf_anchor_node children; char name[PF_ANCHOR_NAME_SIZE]; char path[MAXPATHLEN]; struct pf_ruleset ruleset; int refcnt; /* anchor rules */ int match; char owner[PF_OWNER_NAME_SIZE]; }; #ifdef KERNEL RB_PROTOTYPE_SC(__private_extern__, pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); RB_PROTOTYPE_SC(__private_extern__, pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); #else /* !KERNEL */ RB_PROTOTYPE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare); RB_PROTOTYPE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare); #endif /* !KERNEL */ #define PF_RESERVED_ANCHOR "_pf" #define PFR_TFLAG_PERSIST 0x00000001 #define PFR_TFLAG_CONST 0x00000002 #define PFR_TFLAG_ACTIVE 0x00000004 #define PFR_TFLAG_INACTIVE 0x00000008 #define PFR_TFLAG_REFERENCED 0x00000010 #define PFR_TFLAG_REFDANCHOR 0x00000020 #define PFR_TFLAG_USRMASK 0x00000003 #define PFR_TFLAG_SETMASK 0x0000003C #define PFR_TFLAG_ALLMASK 0x0000003F struct pfr_table { char pfrt_anchor[MAXPATHLEN]; char pfrt_name[PF_TABLE_NAME_SIZE]; u_int32_t pfrt_flags; u_int8_t pfrt_fback; }; enum { PFR_FB_NONE, PFR_FB_MATCH, PFR_FB_ADDED, PFR_FB_DELETED, PFR_FB_CHANGED, PFR_FB_CLEARED, PFR_FB_DUPLICATE, PFR_FB_NOTMATCH, PFR_FB_CONFLICT, PFR_FB_MAX }; struct pfr_addr { union { struct in_addr _pfra_ip4addr; struct in6_addr _pfra_ip6addr; } pfra_u; u_int8_t pfra_af; u_int8_t pfra_net; u_int8_t pfra_not; u_int8_t pfra_fback; }; #define pfra_ip4addr pfra_u._pfra_ip4addr #define pfra_ip6addr pfra_u._pfra_ip6addr enum { PFR_DIR_IN, PFR_DIR_OUT, PFR_DIR_MAX }; enum { PFR_OP_BLOCK, PFR_OP_PASS, PFR_OP_ADDR_MAX, PFR_OP_TABLE_MAX }; #define PFR_OP_XPASS PFR_OP_ADDR_MAX struct pfr_astats { struct pfr_addr pfras_a; #if !defined(__LP64__) u_int32_t _pad; #endif /* !__LP64__ */ u_int64_t pfras_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; u_int64_t pfras_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; u_int64_t pfras_tzero; }; enum { PFR_REFCNT_RULE, PFR_REFCNT_ANCHOR, PFR_REFCNT_MAX }; struct pfr_tstats { struct pfr_table pfrts_t; u_int64_t pfrts_packets[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; u_int64_t pfrts_bytes[PFR_DIR_MAX][PFR_OP_TABLE_MAX]; u_int64_t pfrts_match; u_int64_t pfrts_nomatch; u_int64_t pfrts_tzero; int pfrts_cnt; int pfrts_refcnt[PFR_REFCNT_MAX]; #if !defined(__LP64__) u_int32_t _pad; #endif /* !__LP64__ */ }; #define pfrts_name pfrts_t.pfrt_name #define pfrts_flags pfrts_t.pfrt_flags #ifdef KERNEL SLIST_HEAD(pfr_kentryworkq, pfr_kentry); struct pfr_kentry { struct radix_node pfrke_node[2]; union sockaddr_union pfrke_sa; u_int64_t pfrke_packets[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; u_int64_t pfrke_bytes[PFR_DIR_MAX][PFR_OP_ADDR_MAX]; SLIST_ENTRY(pfr_kentry) pfrke_workq; u_int64_t pfrke_tzero; u_int8_t pfrke_af; u_int8_t pfrke_net; u_int8_t pfrke_not; u_int8_t pfrke_mark; u_int8_t pfrke_intrpool; }; SLIST_HEAD(pfr_ktableworkq, pfr_ktable); RB_HEAD(pfr_ktablehead, pfr_ktable); struct pfr_ktable { struct pfr_tstats pfrkt_ts; RB_ENTRY(pfr_ktable) pfrkt_tree; SLIST_ENTRY(pfr_ktable) pfrkt_workq; struct radix_node_head *pfrkt_ip4; struct radix_node_head *pfrkt_ip6; struct pfr_ktable *pfrkt_shadow; struct pfr_ktable *pfrkt_root; struct pf_ruleset *pfrkt_rs; u_int64_t pfrkt_larg; u_int32_t pfrkt_nflags; }; #define pfrkt_t pfrkt_ts.pfrts_t #define pfrkt_name pfrkt_t.pfrt_name #define pfrkt_anchor pfrkt_t.pfrt_anchor #define pfrkt_ruleset pfrkt_t.pfrt_ruleset #define pfrkt_flags pfrkt_t.pfrt_flags #define pfrkt_cnt pfrkt_ts.pfrts_cnt #define pfrkt_refcnt pfrkt_ts.pfrts_refcnt #define pfrkt_packets pfrkt_ts.pfrts_packets #define pfrkt_bytes pfrkt_ts.pfrts_bytes #define pfrkt_match pfrkt_ts.pfrts_match #define pfrkt_nomatch pfrkt_ts.pfrts_nomatch #define pfrkt_tzero pfrkt_ts.pfrts_tzero RB_HEAD(pf_state_tree_lan_ext, pf_state_key); RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_lan_ext, pf_state_key, entry_lan_ext, pf_state_compare_lan_ext); RB_HEAD(pf_state_tree_ext_gwy, pf_state_key); RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_ext_gwy, pf_state_key, entry_ext_gwy, pf_state_compare_ext_gwy); RB_HEAD(pfi_ifhead, pfi_kif); /* state tables */ extern struct pf_state_tree_lan_ext pf_statetbl_lan_ext; extern struct pf_state_tree_ext_gwy pf_statetbl_ext_gwy; /* keep synced with pfi_kif, used in RB_FIND */ struct pfi_kif_cmp { char pfik_name[IFNAMSIZ]; }; struct pfi_kif { char pfik_name[IFNAMSIZ]; RB_ENTRY(pfi_kif) pfik_tree; u_int64_t pfik_packets[2][2][2]; u_int64_t pfik_bytes[2][2][2]; u_int64_t pfik_tzero; int pfik_flags; void *pfik_ah_cookie; struct ifnet *pfik_ifp; int pfik_states; int pfik_rules; TAILQ_HEAD(, pfi_dynaddr) pfik_dynaddrs; }; enum pfi_kif_refs { PFI_KIF_REF_NONE, PFI_KIF_REF_STATE, PFI_KIF_REF_RULE }; struct pfi_uif { #else /* !KERNEL */ struct pfi_kif { #endif /* !KERNEL */ char pfik_name[IFNAMSIZ]; u_int64_t pfik_packets[2][2][2]; u_int64_t pfik_bytes[2][2][2]; u_int64_t pfik_tzero; int pfik_flags; int pfik_states; int pfik_rules; #if !defined(__LP64__) u_int32_t _pad; #endif /* !__LP64__ */ }; #define PFI_IFLAG_SKIP 0x0100 /* skip filtering on interface */ #ifdef KERNEL struct pf_pdesc { struct { int done; uid_t uid; gid_t gid; pid_t pid; } lookup; u_int64_t tot_len; /* Make Mickey money */ union { struct tcphdr *tcp; struct udphdr *udp; struct icmp *icmp; #if INET6 struct icmp6_hdr *icmp6; #endif /* INET6 */ struct pf_grev1_hdr *grev1; struct pf_esp_hdr *esp; void *any; } hdr; /* XXX TODO: Change baddr and naddr to *saddr */ struct pf_addr baddr; /* src address before translation */ struct pf_addr bdaddr; /* dst address before translation */ struct pf_addr naddr; /* src address after translation */ struct pf_addr ndaddr; /* dst address after translation */ struct pf_rule *nat_rule; /* nat/rdr rule applied to packet */ struct pf_addr *src; struct pf_addr *dst; struct ether_header *eh; pbuf_t *mp; int lmw; /* lazy writable offset */ struct pf_mtag *pf_mtag; u_int16_t *ip_sum; u_int32_t off; /* protocol header offset */ u_int32_t hdrlen; /* protocol header length */ u_int32_t p_len; /* total length of payload */ u_int16_t flags; /* Let SCRUB trigger behavior in */ /* state code. Easier than tags */ #define PFDESC_TCP_NORM 0x0001 /* TCP shall be statefully scrubbed */ #define PFDESC_IP_REAS 0x0002 /* IP frags would've been reassembled */ #define PFDESC_IP_FRAG 0x0004 /* This is a fragment */ sa_family_t af; sa_family_t naf; /* address family after translation */ u_int8_t proto; u_int8_t tos; u_int8_t ttl; u_int8_t proto_variant; mbuf_svc_class_t sc; /* mbuf service class (MBUF_SVC) */ u_int32_t pktflags; /* mbuf packet flags (PKTF) */ u_int32_t flowsrc; /* flow source (FLOWSRC) */ u_int32_t flowhash; /* flow hash to identify the sender */ }; #endif /* KERNEL */ /* flags for RDR options */ #define PF_DPORT_RANGE 0x01 /* Dest port uses range */ #define PF_RPORT_RANGE 0x02 /* RDR'ed port uses range */ /* Reasons code for passing/dropping a packet */ #define PFRES_MATCH 0 /* Explicit match of a rule */ #define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ #define PFRES_FRAG 2 /* Dropping following fragment */ #define PFRES_SHORT 3 /* Dropping short packet */ #define PFRES_NORM 4 /* Dropping by normalizer */ #define PFRES_MEMORY 5 /* Dropped due to lacking mem */ #define PFRES_TS 6 /* Bad TCP Timestamp (RFC1323) */ #define PFRES_CONGEST 7 /* Congestion (of ipintrq) */ #define PFRES_IPOPTIONS 8 /* IP option */ #define PFRES_PROTCKSUM 9 /* Protocol checksum invalid */ #define PFRES_BADSTATE 10 /* State mismatch */ #define PFRES_STATEINS 11 /* State insertion failure */ #define PFRES_MAXSTATES 12 /* State limit */ #define PFRES_SRCLIMIT 13 /* Source node/conn limit */ #define PFRES_SYNPROXY 14 /* SYN proxy */ #define PFRES_DUMMYNET 15 /* Dummynet */ #define PFRES_MAX 16 /* total+1 */ #define PFRES_NAMES { \ "match", \ "bad-offset", \ "fragment", \ "short", \ "normalize", \ "memory", \ "bad-timestamp", \ "congestion", \ "ip-option", \ "proto-cksum", \ "state-mismatch", \ "state-insert", \ "state-limit", \ "src-limit", \ "synproxy", \ "dummynet", \ NULL \ } /* Counters for other things we want to keep track of */ #define LCNT_STATES 0 /* states */ #define LCNT_SRCSTATES 1 /* max-src-states */ #define LCNT_SRCNODES 2 /* max-src-nodes */ #define LCNT_SRCCONN 3 /* max-src-conn */ #define LCNT_SRCCONNRATE 4 /* max-src-conn-rate */ #define LCNT_OVERLOAD_TABLE 5 /* entry added to overload table */ #define LCNT_OVERLOAD_FLUSH 6 /* state entries flushed */ #define LCNT_MAX 7 /* total+1 */ #define LCNT_NAMES { \ "max states per rule", \ "max-src-states", \ "max-src-nodes", \ "max-src-conn", \ "max-src-conn-rate", \ "overload table insertion", \ "overload flush states", \ NULL \ } /* UDP state enumeration */ #define PFUDPS_NO_TRAFFIC 0 #define PFUDPS_SINGLE 1 #define PFUDPS_MULTIPLE 2 #define PFUDPS_NSTATES 3 /* number of state levels */ #define PFUDPS_NAMES { \ "NO_TRAFFIC", \ "SINGLE", \ "MULTIPLE", \ NULL \ } /* GREv1 protocol state enumeration */ #define PFGRE1S_NO_TRAFFIC 0 #define PFGRE1S_INITIATING 1 #define PFGRE1S_ESTABLISHED 2 #define PFGRE1S_NSTATES 3 /* number of state levels */ #define PFGRE1S_NAMES { \ "NO_TRAFFIC", \ "INITIATING", \ "ESTABLISHED", \ NULL \ } #define PFESPS_NO_TRAFFIC 0 #define PFESPS_INITIATING 1 #define PFESPS_ESTABLISHED 2 #define PFESPS_NSTATES 3 /* number of state levels */ #define PFESPS_NAMES { "NO_TRAFFIC", "INITIATING", "ESTABLISHED", NULL } /* Other protocol state enumeration */ #define PFOTHERS_NO_TRAFFIC 0 #define PFOTHERS_SINGLE 1 #define PFOTHERS_MULTIPLE 2 #define PFOTHERS_NSTATES 3 /* number of state levels */ #define PFOTHERS_NAMES { \ "NO_TRAFFIC", \ "SINGLE", \ "MULTIPLE", \ NULL \ } #define FCNT_STATE_SEARCH 0 #define FCNT_STATE_INSERT 1 #define FCNT_STATE_REMOVALS 2 #define FCNT_MAX 3 #define SCNT_SRC_NODE_SEARCH 0 #define SCNT_SRC_NODE_INSERT 1 #define SCNT_SRC_NODE_REMOVALS 2 #define SCNT_MAX 3 #ifdef KERNEL #define ACTION_SET(a, x) \ do { \ if ((a) != NULL) \ *(a) = (x); \ } while (0) #define REASON_SET(a, x) \ do { \ if ((a) != NULL) \ *(a) = (x); \ if (x < PFRES_MAX) \ pf_status.counters[x]++; \ } while (0) #endif /* KERNEL */ struct pf_status { u_int64_t counters[PFRES_MAX]; u_int64_t lcounters[LCNT_MAX]; /* limit counters */ u_int64_t fcounters[FCNT_MAX]; u_int64_t scounters[SCNT_MAX]; u_int64_t pcounters[2][2][3]; u_int64_t bcounters[2][2]; u_int64_t stateid; u_int32_t running; u_int32_t states; u_int32_t src_nodes; u_int64_t since __attribute__((aligned(8))); u_int32_t debug; u_int32_t hostid; char ifname[IFNAMSIZ]; u_int8_t pf_chksum[PF_MD5_DIGEST_LENGTH]; }; struct cbq_opts { u_int32_t minburst; u_int32_t maxburst; u_int32_t pktsize; u_int32_t maxpktsize; u_int32_t ns_per_byte; u_int32_t maxidle; int32_t minidle; u_int32_t offtime; u_int32_t flags; }; struct priq_opts { u_int32_t flags; }; struct qfq_opts { u_int32_t flags; u_int32_t lmax; }; struct hfsc_opts { /* real-time service curve */ u_int64_t rtsc_m1; /* slope of the 1st segment in bps */ u_int64_t rtsc_d; /* the x-projection of m1 in msec */ u_int64_t rtsc_m2; /* slope of the 2nd segment in bps */ u_int32_t rtsc_fl; /* service curve flags */ #if !defined(__LP64__) u_int32_t _pad; #endif /* !__LP64__ */ /* link-sharing service curve */ u_int64_t lssc_m1; u_int64_t lssc_d; u_int64_t lssc_m2; u_int32_t lssc_fl; #if !defined(__LP64__) u_int32_t __pad; #endif /* !__LP64__ */ /* upper-limit service curve */ u_int64_t ulsc_m1; u_int64_t ulsc_d; u_int64_t ulsc_m2; u_int32_t ulsc_fl; u_int32_t flags; /* scheduler flags */ }; struct fairq_opts { u_int32_t nbuckets; /* hash buckets */ u_int32_t flags; u_int64_t hogs_m1; /* hog detection bandwidth */ /* link-sharing service curve */ u_int64_t lssc_m1; u_int64_t lssc_d; u_int64_t lssc_m2; }; /* bandwidth types */ #define PF_ALTQ_BW_ABSOLUTE 1 /* bw in absolute value (bps) */ #define PF_ALTQ_BW_PERCENT 2 /* bandwidth in percentage */ /* ALTQ rule flags */ #define PF_ALTQF_TBR 0x1 /* enable Token Bucket Regulator */ /* queue rule flags */ #define PF_ALTQ_QRF_WEIGHT 0x1 /* weight instead of priority */ struct pf_altq { char ifname[IFNAMSIZ]; /* discipline-specific state */ void *altq_disc __attribute__((aligned(8))); TAILQ_ENTRY(pf_altq) entries __attribute__((aligned(8))); #if !defined(__LP64__) u_int32_t _pad[2]; #endif /* !__LP64__ */ u_int32_t aflags; /* ALTQ rule flags */ u_int32_t bwtype; /* bandwidth type */ /* scheduler spec */ u_int32_t scheduler; /* scheduler type */ u_int32_t tbrsize; /* tokenbucket regulator size */ u_int64_t ifbandwidth; /* interface bandwidth */ /* queue spec */ char qname[PF_QNAME_SIZE]; /* queue name */ char parent[PF_QNAME_SIZE]; /* parent name */ u_int32_t parent_qid; /* parent queue id */ u_int32_t qrflags; /* queue rule flags */ union { u_int32_t priority; /* priority */ u_int32_t weight; /* weight */ }; u_int32_t qlimit; /* queue size limit */ u_int32_t flags; /* misc flags */ #if !defined(__LP64__) u_int32_t __pad; #endif /* !__LP64__ */ u_int64_t bandwidth; /* queue bandwidth */ union { struct cbq_opts cbq_opts; struct priq_opts priq_opts; struct hfsc_opts hfsc_opts; struct fairq_opts fairq_opts; struct qfq_opts qfq_opts; } pq_u; u_int32_t qid; /* return value */ }; struct pf_tagname { TAILQ_ENTRY(pf_tagname) entries; char name[PF_TAG_NAME_SIZE]; u_int16_t tag; int ref; }; #define PFFRAG_FRENT_HIWAT 5000 /* Number of fragment entries */ #define PFFRAG_FRAG_HIWAT 1000 /* Number of fragmented packets */ #define PFFRAG_FRCENT_HIWAT 50000 /* Number of fragment cache entries */ #define PFFRAG_FRCACHE_HIWAT 10000 /* Number of fragment descriptors */ #define PFR_KTABLE_HIWAT 1000 /* Number of tables */ #define PFR_KENTRY_HIWAT 200000 /* Number of table entries */ #define PFR_KENTRY_HIWAT_SMALL 100000 /* Number of table entries (tiny hosts) */ /* * ioctl parameter structures */ struct pfioc_pooladdr { u_int32_t action; u_int32_t ticket; u_int32_t nr; u_int32_t r_num; u_int8_t r_action; u_int8_t r_last; u_int8_t af; char anchor[MAXPATHLEN]; struct pf_pooladdr addr; }; struct pfioc_rule { u_int32_t action; u_int32_t ticket; u_int32_t pool_ticket; u_int32_t nr; char anchor[MAXPATHLEN]; char anchor_call[MAXPATHLEN]; struct pf_rule rule; }; struct pfioc_natlook { struct pf_addr saddr; struct pf_addr daddr; struct pf_addr rsaddr; struct pf_addr rdaddr; union pf_state_xport sxport; union pf_state_xport dxport; union pf_state_xport rsxport; union pf_state_xport rdxport; sa_family_t af; u_int8_t proto; u_int8_t proto_variant; u_int8_t direction; }; struct pfioc_state { struct pfsync_state state; }; struct pfioc_src_node_kill { /* XXX returns the number of src nodes killed in psnk_af */ sa_family_t psnk_af; struct pf_rule_addr psnk_src; struct pf_rule_addr psnk_dst; }; struct pfioc_state_addr_kill { struct pf_addr_wrap addr; u_int8_t reserved_[3]; u_int8_t neg; union pf_rule_xport xport; }; struct pfioc_state_kill { /* XXX returns the number of states killed in psk_af */ sa_family_t psk_af; u_int8_t psk_proto; u_int8_t psk_proto_variant; u_int8_t _pad; struct pfioc_state_addr_kill psk_src; struct pfioc_state_addr_kill psk_dst; char psk_ifname[IFNAMSIZ]; char psk_ownername[PF_OWNER_NAME_SIZE]; }; struct pfioc_states { int ps_len; union { caddr_t psu_buf; struct pfsync_state *psu_states; } ps_u __attribute__((aligned(8))); #define ps_buf ps_u.psu_buf #define ps_states ps_u.psu_states }; #ifdef KERNEL struct pfioc_states_32 { int ps_len; union { user32_addr_t psu_buf; user32_addr_t psu_states; } ps_u __attribute__((aligned(8))); }; struct pfioc_states_64 { int ps_len; union { user64_addr_t psu_buf; user64_addr_t psu_states; } ps_u __attribute__((aligned(8))); }; #endif /* KERNEL */ #define PFTOK_PROCNAME_LEN 64 #pragma pack(1) struct pfioc_token { u_int64_t token_value; u_int64_t timestamp; pid_t pid; char proc_name[PFTOK_PROCNAME_LEN]; }; #pragma pack() struct pfioc_kernel_token { SLIST_ENTRY(pfioc_kernel_token) next; struct pfioc_token token; }; struct pfioc_remove_token { u_int64_t token_value; u_int64_t refcount; }; struct pfioc_tokens { int size; union { caddr_t pgtu_buf; struct pfioc_token *pgtu_tokens; } pgt_u __attribute__((aligned(8))); #define pgt_buf pgt_u.pgtu_buf #define pgt_tokens pgt_u.pgtu_tokens }; #ifdef KERNEL struct pfioc_tokens_32 { int size; union { user32_addr_t pgtu_buf; user32_addr_t pgtu_tokens; } pgt_u __attribute__((aligned(8))); }; struct pfioc_tokens_64 { int size; union { user64_addr_t pgtu_buf; user64_addr_t pgtu_tokens; } pgt_u __attribute__((aligned(8))); }; #endif /* KERNEL */ struct pfioc_src_nodes { int psn_len; union { caddr_t psu_buf; struct pf_src_node *psu_src_nodes; } psn_u __attribute__((aligned(8))); #define psn_buf psn_u.psu_buf #define psn_src_nodes psn_u.psu_src_nodes }; #ifdef KERNEL struct pfioc_src_nodes_32 { int psn_len; union { user32_addr_t psu_buf; user32_addr_t psu_src_nodes; } psn_u __attribute__((aligned(8))); }; struct pfioc_src_nodes_64 { int psn_len; union { user64_addr_t psu_buf; user64_addr_t psu_src_nodes; } psn_u __attribute__((aligned(8))); }; #endif /* KERNEL */ struct pfioc_if { char ifname[IFNAMSIZ]; }; struct pfioc_tm { int timeout; int seconds; }; struct pfioc_limit { int index; unsigned limit; }; struct pfioc_altq { u_int32_t action; u_int32_t ticket; u_int32_t nr; struct pf_altq altq __attribute__((aligned(8))); }; struct pfioc_qstats { u_int32_t ticket; u_int32_t nr; void *buf __attribute__((aligned(8))); int nbytes __attribute__((aligned(8))); u_int8_t scheduler; }; struct pfioc_ruleset { u_int32_t nr; char path[MAXPATHLEN]; char name[PF_ANCHOR_NAME_SIZE]; }; #define PF_RULESET_ALTQ (PF_RULESET_MAX) #define PF_RULESET_TABLE (PF_RULESET_MAX+1) struct pfioc_trans { int size; /* number of elements */ int esize; /* size of each element in bytes */ struct pfioc_trans_e { int rs_num; char anchor[MAXPATHLEN]; u_int32_t ticket; } *array __attribute__((aligned(8))); }; #ifdef KERNEL struct pfioc_trans_32 { int size; /* number of elements */ int esize; /* size of each element in bytes */ user32_addr_t array __attribute__((aligned(8))); }; struct pfioc_trans_64 { int size; /* number of elements */ int esize; /* size of each element in bytes */ user64_addr_t array __attribute__((aligned(8))); }; #endif /* KERNEL */ #define PFR_FLAG_ATOMIC 0x00000001 #define PFR_FLAG_DUMMY 0x00000002 #define PFR_FLAG_FEEDBACK 0x00000004 #define PFR_FLAG_CLSTATS 0x00000008 #define PFR_FLAG_ADDRSTOO 0x00000010 #define PFR_FLAG_REPLACE 0x00000020 #define PFR_FLAG_ALLRSETS 0x00000040 #define PFR_FLAG_ALLMASK 0x0000007F #ifdef KERNEL #define PFR_FLAG_USERIOCTL 0x10000000 #endif /* KERNEL */ struct pfioc_table { struct pfr_table pfrio_table; void *pfrio_buffer __attribute__((aligned(8))); int pfrio_esize __attribute__((aligned(8))); int pfrio_size; int pfrio_size2; int pfrio_nadd; int pfrio_ndel; int pfrio_nchange; int pfrio_flags; u_int32_t pfrio_ticket; }; #define pfrio_exists pfrio_nadd #define pfrio_nzero pfrio_nadd #define pfrio_nmatch pfrio_nadd #define pfrio_naddr pfrio_size2 #define pfrio_setflag pfrio_size2 #define pfrio_clrflag pfrio_nadd #ifdef KERNEL struct pfioc_table_32 { struct pfr_table pfrio_table; user32_addr_t pfrio_buffer __attribute__((aligned(8))); int pfrio_esize __attribute__((aligned(8))); int pfrio_size; int pfrio_size2; int pfrio_nadd; int pfrio_ndel; int pfrio_nchange; int pfrio_flags; u_int32_t pfrio_ticket; }; struct pfioc_table_64 { struct pfr_table pfrio_table; user64_addr_t pfrio_buffer __attribute__((aligned(8))); int pfrio_esize __attribute__((aligned(8))); int pfrio_size; int pfrio_size2; int pfrio_nadd; int pfrio_ndel; int pfrio_nchange; int pfrio_flags; u_int32_t pfrio_ticket; }; #endif /* KERNEL */ struct pfioc_iface { char pfiio_name[IFNAMSIZ]; void *pfiio_buffer __attribute__((aligned(8))); int pfiio_esize __attribute__((aligned(8))); int pfiio_size; int pfiio_nzero; int pfiio_flags; }; #ifdef KERNEL struct pfioc_iface_32 { char pfiio_name[IFNAMSIZ]; user32_addr_t pfiio_buffer __attribute__((aligned(8))); int pfiio_esize __attribute__((aligned(8))); int pfiio_size; int pfiio_nzero; int pfiio_flags; }; struct pfioc_iface_64 { char pfiio_name[IFNAMSIZ]; user64_addr_t pfiio_buffer __attribute__((aligned(8))); int pfiio_esize __attribute__((aligned(8))); int pfiio_size; int pfiio_nzero; int pfiio_flags; }; #endif /* KERNEL */ struct pf_ifspeed { char ifname[IFNAMSIZ]; u_int64_t baudrate; }; /* * ioctl operations */ #define DIOCSTART _IO ('D', 1) #define DIOCSTOP _IO ('D', 2) #define DIOCADDRULE _IOWR('D', 4, struct pfioc_rule) #define DIOCGETSTARTERS _IOWR('D', 5, struct pfioc_tokens) #define DIOCGETRULES _IOWR('D', 6, struct pfioc_rule) #define DIOCGETRULE _IOWR('D', 7, struct pfioc_rule) #define DIOCSTARTREF _IOR ('D', 8, u_int64_t) #define DIOCSTOPREF _IOWR('D', 9, struct pfioc_remove_token) /* XXX cut 10 - 17 */ #define DIOCCLRSTATES _IOWR('D', 18, struct pfioc_state_kill) #define DIOCGETSTATE _IOWR('D', 19, struct pfioc_state) #define DIOCSETSTATUSIF _IOWR('D', 20, struct pfioc_if) #define DIOCGETSTATUS _IOWR('D', 21, struct pf_status) #define DIOCCLRSTATUS _IO ('D', 22) #define DIOCNATLOOK _IOWR('D', 23, struct pfioc_natlook) #define DIOCSETDEBUG _IOWR('D', 24, u_int32_t) #define DIOCGETSTATES _IOWR('D', 25, struct pfioc_states) #define DIOCCHANGERULE _IOWR('D', 26, struct pfioc_rule) #define DIOCINSERTRULE _IOWR('D', 27, struct pfioc_rule) #define DIOCDELETERULE _IOWR('D', 28, struct pfioc_rule) #define DIOCSETTIMEOUT _IOWR('D', 29, struct pfioc_tm) #define DIOCGETTIMEOUT _IOWR('D', 30, struct pfioc_tm) #define DIOCADDSTATE _IOWR('D', 37, struct pfioc_state) #define DIOCCLRRULECTRS _IO ('D', 38) #define DIOCGETLIMIT _IOWR('D', 39, struct pfioc_limit) #define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit) #define DIOCKILLSTATES _IOWR('D', 41, struct pfioc_state_kill) #define DIOCSTARTALTQ _IO ('D', 42) #define DIOCSTOPALTQ _IO ('D', 43) #define DIOCADDALTQ _IOWR('D', 45, struct pfioc_altq) #define DIOCGETALTQS _IOWR('D', 47, struct pfioc_altq) #define DIOCGETALTQ _IOWR('D', 48, struct pfioc_altq) #define DIOCCHANGEALTQ _IOWR('D', 49, struct pfioc_altq) #define DIOCGETQSTATS _IOWR('D', 50, struct pfioc_qstats) #define DIOCBEGINADDRS _IOWR('D', 51, struct pfioc_pooladdr) #define DIOCADDADDR _IOWR('D', 52, struct pfioc_pooladdr) #define DIOCGETADDRS _IOWR('D', 53, struct pfioc_pooladdr) #define DIOCGETADDR _IOWR('D', 54, struct pfioc_pooladdr) #define DIOCCHANGEADDR _IOWR('D', 55, struct pfioc_pooladdr) /* XXX cut 55 - 57 */ #define DIOCGETRULESETS _IOWR('D', 58, struct pfioc_ruleset) #define DIOCGETRULESET _IOWR('D', 59, struct pfioc_ruleset) #define DIOCRCLRTABLES _IOWR('D', 60, struct pfioc_table) #define DIOCRADDTABLES _IOWR('D', 61, struct pfioc_table) #define DIOCRDELTABLES _IOWR('D', 62, struct pfioc_table) #define DIOCRGETTABLES _IOWR('D', 63, struct pfioc_table) #define DIOCRGETTSTATS _IOWR('D', 64, struct pfioc_table) #define DIOCRCLRTSTATS _IOWR('D', 65, struct pfioc_table) #define DIOCRCLRADDRS _IOWR('D', 66, struct pfioc_table) #define DIOCRADDADDRS _IOWR('D', 67, struct pfioc_table) #define DIOCRDELADDRS _IOWR('D', 68, struct pfioc_table) #define DIOCRSETADDRS _IOWR('D', 69, struct pfioc_table) #define DIOCRGETADDRS _IOWR('D', 70, struct pfioc_table) #define DIOCRGETASTATS _IOWR('D', 71, struct pfioc_table) #define DIOCRCLRASTATS _IOWR('D', 72, struct pfioc_table) #define DIOCRTSTADDRS _IOWR('D', 73, struct pfioc_table) #define DIOCRSETTFLAGS _IOWR('D', 74, struct pfioc_table) #define DIOCRINADEFINE _IOWR('D', 77, struct pfioc_table) #define DIOCOSFPFLUSH _IO('D', 78) #define DIOCOSFPADD _IOWR('D', 79, struct pf_osfp_ioctl) #define DIOCOSFPGET _IOWR('D', 80, struct pf_osfp_ioctl) #define DIOCXBEGIN _IOWR('D', 81, struct pfioc_trans) #define DIOCXCOMMIT _IOWR('D', 82, struct pfioc_trans) #define DIOCXROLLBACK _IOWR('D', 83, struct pfioc_trans) #define DIOCGETSRCNODES _IOWR('D', 84, struct pfioc_src_nodes) #define DIOCCLRSRCNODES _IO('D', 85) #define DIOCSETHOSTID _IOWR('D', 86, u_int32_t) #define DIOCIGETIFACES _IOWR('D', 87, struct pfioc_iface) #define DIOCSETIFFLAG _IOWR('D', 89, struct pfioc_iface) #define DIOCCLRIFFLAG _IOWR('D', 90, struct pfioc_iface) #define DIOCKILLSRCNODES _IOWR('D', 91, struct pfioc_src_node_kill) #define DIOCGIFSPEED _IOWR('D', 92, struct pf_ifspeed) #ifdef KERNEL RB_HEAD(pf_src_tree, pf_src_node); RB_PROTOTYPE_SC(__private_extern__, pf_src_tree, pf_src_node, entry, pf_src_compare); extern struct pf_src_tree tree_src_tracking; RB_HEAD(pf_state_tree_id, pf_state); RB_PROTOTYPE_SC(__private_extern__, pf_state_tree_id, pf_state, entry_id, pf_state_compare_id); extern struct pf_state_tree_id tree_id; extern struct pf_state_queue state_list; TAILQ_HEAD(pf_poolqueue, pf_pool); extern struct pf_poolqueue pf_pools[2]; extern struct pf_palist pf_pabuf; extern u_int32_t ticket_pabuf; extern struct pf_poolqueue *pf_pools_active; extern struct pf_poolqueue *pf_pools_inactive; __private_extern__ int pf_tbladdr_setup(struct pf_ruleset *, struct pf_addr_wrap *); __private_extern__ void pf_tbladdr_remove(struct pf_addr_wrap *); __private_extern__ void pf_tbladdr_copyout(struct pf_addr_wrap *); __private_extern__ void pf_calc_skip_steps(struct pf_rulequeue *); __private_extern__ u_int32_t pf_calc_state_key_flowhash(struct pf_state_key *); extern struct pool pf_src_tree_pl, pf_rule_pl; extern struct pool pf_state_pl, pf_state_key_pl, pf_pooladdr_pl; extern struct pool pf_state_scrub_pl; extern struct pool pf_app_state_pl; extern struct thread *pf_purge_thread; __private_extern__ void pfinit(void); __private_extern__ void pf_purge_thread_fn(void *, wait_result_t) __dead2; __private_extern__ void pf_purge_expired_src_nodes(void); __private_extern__ void pf_purge_expired_states(u_int32_t); __private_extern__ void pf_unlink_state(struct pf_state *); __private_extern__ void pf_free_state(struct pf_state *); __private_extern__ int pf_insert_state(struct pfi_kif *, struct pf_state *); __private_extern__ int pf_insert_src_node(struct pf_src_node **, struct pf_rule *, struct pf_addr *, sa_family_t); __private_extern__ void pf_src_tree_remove_state(struct pf_state *); __private_extern__ struct pf_state *pf_find_state_byid(struct pf_state_cmp *); __private_extern__ struct pf_state *pf_find_state_all(struct pf_state_key_cmp *, u_int, int *); __private_extern__ void pf_print_state(struct pf_state *); __private_extern__ void pf_print_flags(u_int8_t); __private_extern__ u_int16_t pf_cksum_fixup(u_int16_t, u_int16_t, u_int16_t, u_int8_t); extern struct ifnet *sync_ifp; extern struct pf_rule pf_default_rule; __private_extern__ void pf_addrcpy(struct pf_addr *, struct pf_addr *, u_int8_t); __private_extern__ void pf_rm_rule(struct pf_rulequeue *, struct pf_rule *); struct ip_fw_args; extern boolean_t is_nlc_enabled_glb; #if INET __private_extern__ int pf_test(int, struct ifnet *, pbuf_t **, struct ether_header *, struct ip_fw_args *); __private_extern__ int pf_test_mbuf(int, struct ifnet *, struct mbuf **, struct ether_header *, struct ip_fw_args *); #endif /* INET */ #if INET6 __private_extern__ int pf_test6(int, struct ifnet *, pbuf_t **, struct ether_header *, struct ip_fw_args *); __private_extern__ int pf_test6_mbuf(int, struct ifnet *, struct mbuf **, struct ether_header *, struct ip_fw_args *); __private_extern__ void pf_poolmask(struct pf_addr *, struct pf_addr *, struct pf_addr *, struct pf_addr *, u_int8_t); __private_extern__ void pf_addr_inc(struct pf_addr *, sa_family_t); __private_extern__ int pf_normalize_ip6(pbuf_t *, int, struct pfi_kif *, u_short *, struct pf_pdesc *); __private_extern__ int pf_refragment6(struct ifnet *, pbuf_t **, struct pf_fragment_tag *); #endif /* INET6 */ __private_extern__ void *pf_lazy_makewritable(struct pf_pdesc *, pbuf_t *, int); __private_extern__ void *pf_pull_hdr(pbuf_t *, int, void *, int, u_short *, u_short *, sa_family_t); __private_extern__ void pf_change_a(void *, u_int16_t *, u_int32_t, u_int8_t); __private_extern__ int pflog_packet(struct pfi_kif *, pbuf_t *, sa_family_t, u_int8_t, u_int8_t, struct pf_rule *, struct pf_rule *, struct pf_ruleset *, struct pf_pdesc *); __private_extern__ int pf_match_addr(u_int8_t, struct pf_addr *, struct pf_addr *, struct pf_addr *, sa_family_t); __private_extern__ int pf_match_addr_range(struct pf_addr *, struct pf_addr *, struct pf_addr *, sa_family_t); __private_extern__ int pf_match(u_int8_t, u_int32_t, u_int32_t, u_int32_t); __private_extern__ int pf_match_port(u_int8_t, u_int16_t, u_int16_t, u_int16_t); __private_extern__ int pf_match_xport(u_int8_t, u_int8_t, union pf_rule_xport *, union pf_state_xport *); __private_extern__ int pf_match_uid(u_int8_t, uid_t, uid_t, uid_t); __private_extern__ int pf_match_gid(u_int8_t, gid_t, gid_t, gid_t); __private_extern__ void pf_normalize_init(void); __private_extern__ int pf_normalize_isempty(void); __private_extern__ int pf_normalize_ip(pbuf_t *, int, struct pfi_kif *, u_short *, struct pf_pdesc *); __private_extern__ int pf_normalize_tcp(int, struct pfi_kif *, pbuf_t *, int, int, void *, struct pf_pdesc *); __private_extern__ void pf_normalize_tcp_cleanup(struct pf_state *); __private_extern__ int pf_normalize_tcp_init(pbuf_t *, int, struct pf_pdesc *, struct tcphdr *, struct pf_state_peer *, struct pf_state_peer *); __private_extern__ int pf_normalize_tcp_stateful(pbuf_t *, int, struct pf_pdesc *, u_short *, struct tcphdr *, struct pf_state *, struct pf_state_peer *, struct pf_state_peer *, int *); __private_extern__ u_int64_t pf_state_expires(const struct pf_state *); __private_extern__ void pf_purge_expired_fragments(void); __private_extern__ int pf_routable(struct pf_addr *addr, sa_family_t af, struct pfi_kif *); __private_extern__ int pf_rtlabel_match(struct pf_addr *, sa_family_t, struct pf_addr_wrap *); __private_extern__ int pf_socket_lookup(int, struct pf_pdesc *); __private_extern__ struct pf_state_key *pf_alloc_state_key(struct pf_state *, struct pf_state_key *); __private_extern__ void pfr_initialize(void); __private_extern__ int pfr_match_addr(struct pfr_ktable *, struct pf_addr *, sa_family_t); __private_extern__ void pfr_update_stats(struct pfr_ktable *, struct pf_addr *, sa_family_t, u_int64_t, int, int, int); __private_extern__ int pfr_pool_get(struct pfr_ktable *, int *, struct pf_addr *, struct pf_addr **, struct pf_addr **, sa_family_t); __private_extern__ void pfr_dynaddr_update(struct pfr_ktable *, struct pfi_dynaddr *); __private_extern__ void pfr_table_copyin_cleanup(struct pfr_table *); __private_extern__ struct pfr_ktable *pfr_attach_table(struct pf_ruleset *, char *); __private_extern__ void pfr_detach_table(struct pfr_ktable *); __private_extern__ int pfr_clr_tables(struct pfr_table *, int *, int); __private_extern__ int pfr_add_tables(user_addr_t, int, int *, int); __private_extern__ int pfr_del_tables(user_addr_t, int, int *, int); __private_extern__ int pfr_get_tables(struct pfr_table *, user_addr_t, int *, int); __private_extern__ int pfr_get_tstats(struct pfr_table *, user_addr_t, int *, int); __private_extern__ int pfr_clr_tstats(user_addr_t, int, int *, int); __private_extern__ int pfr_set_tflags(user_addr_t, int, int, int, int *, int *, int); __private_extern__ int pfr_clr_addrs(struct pfr_table *, int *, int); __private_extern__ int pfr_insert_kentry(struct pfr_ktable *, struct pfr_addr *, u_int64_t); __private_extern__ int pfr_add_addrs(struct pfr_table *, user_addr_t, int, int *, int); __private_extern__ int pfr_del_addrs(struct pfr_table *, user_addr_t, int, int *, int); __private_extern__ int pfr_set_addrs(struct pfr_table *, user_addr_t, int, int *, int *, int *, int *, int, u_int32_t); __private_extern__ int pfr_get_addrs(struct pfr_table *, user_addr_t, int *, int); __private_extern__ int pfr_get_astats(struct pfr_table *, user_addr_t, int *, int); __private_extern__ int pfr_clr_astats(struct pfr_table *, user_addr_t, int, int *, int); __private_extern__ int pfr_tst_addrs(struct pfr_table *, user_addr_t, int, int *, int); __private_extern__ int pfr_ina_begin(struct pfr_table *, u_int32_t *, int *, int); __private_extern__ int pfr_ina_rollback(struct pfr_table *, u_int32_t, int *, int); __private_extern__ int pfr_ina_commit(struct pfr_table *, u_int32_t, int *, int *, int); __private_extern__ int pfr_ina_define(struct pfr_table *, user_addr_t, int, int *, int *, u_int32_t, int); extern struct pfi_kif *pfi_all; __private_extern__ void pfi_initialize(void); __private_extern__ struct pfi_kif *pfi_kif_get(const char *); __private_extern__ void pfi_kif_ref(struct pfi_kif *, enum pfi_kif_refs); __private_extern__ void pfi_kif_unref(struct pfi_kif *, enum pfi_kif_refs); __private_extern__ int pfi_kif_match(struct pfi_kif *, struct pfi_kif *); __private_extern__ void pfi_attach_ifnet(struct ifnet *); __private_extern__ void pfi_detach_ifnet(struct ifnet *); __private_extern__ int pfi_match_addr(struct pfi_dynaddr *, struct pf_addr *, sa_family_t); __private_extern__ int pfi_dynaddr_setup(struct pf_addr_wrap *, sa_family_t); __private_extern__ void pfi_dynaddr_remove(struct pf_addr_wrap *); __private_extern__ void pfi_dynaddr_copyout(struct pf_addr_wrap *); __private_extern__ void pfi_update_status(const char *, struct pf_status *); __private_extern__ int pfi_get_ifaces(const char *, user_addr_t, int *); __private_extern__ int pfi_set_flags(const char *, int); __private_extern__ int pfi_clear_flags(const char *, int); __private_extern__ u_int16_t pf_tagname2tag(char *); __private_extern__ void pf_tag2tagname(u_int16_t, char *); __private_extern__ void pf_tag_ref(u_int16_t); __private_extern__ void pf_tag_unref(u_int16_t); __private_extern__ int pf_tag_packet(pbuf_t *, struct pf_mtag *, int, unsigned int, struct pf_pdesc *); __private_extern__ void pf_step_into_anchor(int *, struct pf_ruleset **, int, struct pf_rule **, struct pf_rule **, int *); __private_extern__ int pf_step_out_of_anchor(int *, struct pf_ruleset **, int, struct pf_rule **, struct pf_rule **, int *); __private_extern__ u_int32_t pf_qname2qid(char *); __private_extern__ void pf_qid2qname(u_int32_t, char *); __private_extern__ void pf_qid_unref(u_int32_t); extern struct pf_status pf_status; extern struct pool pf_frent_pl, pf_frag_pl; struct pf_pool_limit { void *pp; unsigned limit; }; extern struct pf_pool_limit pf_pool_limits[PF_LIMIT_MAX]; __private_extern__ int pf_af_hook(struct ifnet *, struct mbuf **, struct mbuf **, unsigned int, int, struct ip_fw_args *); __private_extern__ int pf_ifaddr_hook(struct ifnet *); __private_extern__ void pf_ifnet_hook(struct ifnet *, int); /* * The following are defined with "private extern" storage class for * kernel, and "extern" for user-space. */ extern struct pf_anchor_global pf_anchors; extern struct pf_anchor pf_main_anchor; #define pf_main_ruleset pf_main_anchor.ruleset extern int pf_is_enabled; extern int16_t pf_nat64_configured; #define PF_IS_ENABLED (pf_is_enabled != 0) extern u_int32_t pf_hash_seed; /* these ruleset functions can be linked into userland programs (pfctl) */ __private_extern__ int pf_get_ruleset_number(u_int8_t); __private_extern__ void pf_init_ruleset(struct pf_ruleset *); __private_extern__ int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, const char *); __private_extern__ int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, struct pfioc_rule *); __private_extern__ void pf_anchor_remove(struct pf_rule *); __private_extern__ void pf_remove_if_empty_ruleset(struct pf_ruleset *); __private_extern__ struct pf_anchor *pf_find_anchor(const char *); __private_extern__ struct pf_ruleset *pf_find_ruleset(const char *); __private_extern__ struct pf_ruleset *pf_find_ruleset_with_owner(const char *, const char *, int, int *); __private_extern__ struct pf_ruleset *pf_find_or_create_ruleset(const char *); __private_extern__ void pf_rs_initialize(void); __private_extern__ int pf_osfp_add(struct pf_osfp_ioctl *); __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint(struct pf_pdesc *, pbuf_t *, int, const struct tcphdr *); __private_extern__ struct pf_osfp_enlist *pf_osfp_fingerprint_hdr( const struct ip *, const struct ip6_hdr *, const struct tcphdr *); __private_extern__ void pf_osfp_flush(void); __private_extern__ int pf_osfp_get(struct pf_osfp_ioctl *); __private_extern__ void pf_osfp_initialize(void); __private_extern__ int pf_osfp_match(struct pf_osfp_enlist *, pf_osfp_t); __private_extern__ struct pf_os_fingerprint *pf_osfp_validate(void); __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *); __private_extern__ struct pf_mtag *pf_find_mtag_pbuf(pbuf_t *); __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *); __private_extern__ struct pf_mtag *pf_get_mtag_pbuf(pbuf_t *); __private_extern__ struct pf_fragment_tag * pf_find_fragment_tag_pbuf(pbuf_t *); __private_extern__ struct pf_fragment_tag * pf_find_fragment_tag(struct mbuf *); __private_extern__ struct pf_fragment_tag * pf_copy_fragment_tag(struct mbuf *, struct pf_fragment_tag *, int); #else /* !KERNEL */ extern struct pf_anchor_global pf_anchors; extern struct pf_anchor pf_main_anchor; #define pf_main_ruleset pf_main_anchor.ruleset /* these ruleset functions can be linked into userland programs (pfctl) */ extern int pf_get_ruleset_number(u_int8_t); extern void pf_init_ruleset(struct pf_ruleset *); extern int pf_anchor_setup(struct pf_rule *, const struct pf_ruleset *, const char *); extern int pf_anchor_copyout(const struct pf_ruleset *, const struct pf_rule *, struct pfioc_rule *); extern void pf_anchor_remove(struct pf_rule *); extern void pf_remove_if_empty_ruleset(struct pf_ruleset *); extern struct pf_anchor *pf_find_anchor(const char *); extern struct pf_ruleset *pf_find_ruleset(const char *); extern struct pf_ruleset *pf_find_ruleset_with_owner(const char *, const char *, int, int *); extern struct pf_ruleset *pf_find_or_create_ruleset(const char *); extern void pf_rs_initialize(void); #endif /* !KERNEL */ #ifdef __cplusplus } #endif #endif /* PF || !KERNEL */ #endif /* PRIVATE */ #endif /* _NET_PFVAR_H_ */ |